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Chesterite, Magnetite


Chesterite : (Mg,Fe)17Si20O54(OH)6, Magnetite : Fe2+Fe3+2O4

Photo Copyright © 2007, Jeffrey G, Weissman  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Missoula, Missoula Co., Montana, USA
Green translucent fibrous to flaky masses of chesterite, with magnetite - about a 0.6 cm field of view, Excalibur Mineral specimen.

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